JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

1 of 1

Application +4 | -1

The coefficient of

{x^4}

in the expansion of

\frac{{1 - 2x - {x^2}}}{{{e^{ - x}}}}

View answer and explanation

Correct option: A

\frac{{1 - k - {k^2}}}{{k!}}

Option C is correct because by substituting the given value of x and applying the properties of logarithms, the expression simplifies to -6.

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\frac{3}{4}